/* 媒体查询，确保网页全屏 */
@media screen and (min-width: 100vh) and (min-height: 100vw) {
    body, html {
        width: 100vw;
        height: 100vh;
        margin: 0;
        padding: 0;
        overflow: hidden; /* 防止出现滚动条 */
    }
}